I don't think the staff will be at all happy about this one. For one, you won't be able to move once you've had the epidural and also you'll need to be monitored more once the epidural is in to make sure your BP and the baby's heartbeat doesn't drop from the medication. Water speeds up labour by helping mothers to relax, which includes relaxing the pelvic muscles, which speeds up dilation. If you've had an epidural anyway then you'll have no shortness of relaxation in the muscle department! Unfortunately, mobile epidurals aren't available in HK as far as I know so you won't have the benefit of gravity. When were you planning to get the epidural? If you wait until 5 cm with the aid of the jacuzzi then this is meant to be the magic number in terms of avoiding interventions later on. Hopefully, you'll also have time to get the pain relief before transition if you still feel you need it.